Clusters of Characterized Proteins

GapMind for Amino acid biosynthesis

Clusters of Characterized Proteins

Clustering the characterized proteins for glnA (glutamine synthetase) in L-glutamine biosynthesis

Or see other characterized proteins similar to glnA

Or see all steps for L-glutamine biosynthesis

Or cluster curated proteins matching a keyword

Definition of glnA

Curated proteins or TIGRFams with EC 6.3.1.2
Ignore hits to items matching EC 5.4.4.3 when looking for 'other' hits
Curated sequence SYNPCC7942_2156-MONOMER: glutamine synthetase, type I
Ignore hits to P81643 when looking for 'other' hits (Glutamine synthetase 2 isozyme; Chloroplast GS2; Glutamate--ammonia ligase; EC 6.3.1.2)
Ignore hits to P85087 when looking for 'other' hits (Glutamine synthetase; Glutamate--ammonia ligase; EC 6.3.1.2)
Predicted: UniProt sequence A5N4G9: SubName: Full=GlnA {ECO:0000313|EMBL:EDK32200.1}; EC=6.3.1.2 {ECO:0000313|EMBL:EDK32200.1};
Comment: A protein from Cupriavidus necator is reported to be a 3-hydroxylaminophenol mutase (see Swiss-Prot 3HAPM_CUPNJ), involved in 3-nitrophenol degradation. That is the only glutamine synthetase-like protein in the proteome of Cupriavidus necator (strain JMP 134 / LMG 1197) [see proteome UP000002697] and is 96% identical to the essential protein RR42_RS12995 from Cupriavidus basilensis 4G11. It is probably a glutamine synthetase, so any similarity to this type of enzyme (EC 5.4.4.3) is ignored. link_2156-MONOMER is annotated with the glutamine synthetase reaction, but was not originally given this EC number. In SwissProt, P81643 and P85087 are annotated with this activity but they are very short, so are ignored. CKL_RS00630 (A5N4G9) from Clostridium kluyveri is distantly related to characterized glutamine synthetases, but the active site residues and transition state binding residues are conserved (see alignment to 2whiA), so it is probably the missing glnA.

Fetched 90 sequences

Running BLASTp

Found similarities, at above 30% identity and 75% coverage, for 88 of these sequences

Found 3 clusters of similar sequences. Another 2 sequences are not clustered. Download as table or as draft rules or view by organism

Cluster 1 326-484 amino acids (not heteromeric)

A8WCU3 glutamine synthetase (EC 6.3.1.2) from Gossypium hirsutum
PFams: Gln-synt_N, Gln-synt_C
356 amino acids: PaperBLAST, CDD, Compare to cluster

C5IW59 glutamine synthetase (EC 6.3.1.2) from Lolium perenne
PFams: Gln-synt_N, Gln-synt_C
356 amino acids: PaperBLAST, CDD, Compare to cluster

C5IW60 glutamine synthetase (EC 6.3.1.2) from Lolium perenne
PFams: Gln-synt_N, Gln-synt_C
354 amino acids: PaperBLAST, CDD, Compare to cluster

E9B8P8 glutamine synthetase (EC 6.3.1.2) from Leishmania donovani
PFams: Gln-synt_C
484 amino acids: PaperBLAST, CDD, Compare to cluster

O04998 glutamine synthetase (EC 6.3.1.2) from Medicago truncatula
PFams: Gln-synt_N, Gln-synt_C
356 amino acids: PaperBLAST, CDD, Compare to cluster

O04999 glutamine synthetase (EC 6.3.1.2) from Medicago truncatula
PFams: Gln-synt_C
356 amino acids: PaperBLAST, CDD, Compare to cluster

P04771 glutamine synthetase (EC 6.3.1.2) from Phaseolus vulgaris
PFams: Gln-synt_N, Gln-synt_C
356 amino acids: PaperBLAST, CDD, Compare to cluster

GLNA_RAT / P09606 Glutamine synthetase; GS; Glutamate--ammonia ligase; Palmitoyltransferase GLUL; EC 6.3.1.2; EC 2.3.1.225 from Rattus norvegicus (Rat)
P09606 glutamine synthetase (EC 6.3.1.2) from Rattus norvegicus
PFams: Gln-synt_N, Gln-synt_C
373 amino acids: PaperBLAST, CDD, Compare to cluster

P13564 glutamine synthetase (EC 6.3.1.2) from Hordeum vulgare
PFams: Gln-synt_N, Gln-synt_C
434 amino acids: PaperBLAST, CDD, Compare to cluster

GLN12_ORYSJ / P14654 Glutamine synthetase cytosolic isozyme 1-2; Glutamate--ammonia ligase GLN1;2; OsGLN1;2; Glutamine synthetase root isozyme; OsGS1;2; EC 6.3.1.2 from Oryza sativa subsp. japonica (Rice)
P14654 glutamine synthetase (EC 6.3.1.2) from Oryza sativa Japonica Group
PFams: Gln-synt_N, Gln-synt_C
357 amino acids: PaperBLAST, CDD, Compare to cluster

GLNA2_ORYSJ / P14655 Glutamine synthetase, chloroplastic; Glutamate--ammonia ligase GLN2; OsGLN2; OsGS2; GS2; EC 6.3.1.2 from Oryza sativa subsp. japonica (Rice)
P14655 glutamine synthetase (EC 6.3.1.2) from Oryza sativa
PFams: Gln-synt_N, Gln-synt_C
428 amino acids: PaperBLAST, CDD, Compare to cluster

GLN11_ORYSJ / P14656 Glutamine synthetase cytosolic isozyme 1-1; Glutamate--ammonia ligase GLN1;1; OsGLN1;1; Glutamine synthetase shoot isozyme; OsGS1;1; EC 6.3.1.2 from Oryza sativa subsp. japonica (Rice)
P14656 glutamine synthetase (EC 6.3.1.2) from Oryza sativa Japonica Group
PFams: Gln-synt_N, Gln-synt_C
356 amino acids: PaperBLAST, CDD, Compare to cluster

P15104 glutamine synthetase subunit (EC 6.3.1.2) from Homo sapiens
GLNA_HUMAN / P15104 Glutamine synthetase; GS; Glutamate--ammonia ligase; Palmitoyltransferase GLUL; EC 6.3.1.2; EC 2.3.1.225 from Homo sapiens (Human)
P15104 glutamine synthetase (EC 6.3.1.2) from Homo sapiens
PFams: Gln-synt_N, Gln-synt_C
373 amino acids: PaperBLAST, CDD, Compare to cluster

GLNA_MOUSE / P15105 Glutamine synthetase; GS; Glutamate--ammonia ligase; Palmitoyltransferase GLUL; EC 6.3.1.2; EC 2.3.1.225 from Mus musculus (Mouse)
P15105 glutamine synthetase (EC 6.3.1.2) from Mus musculus
PFams: Gln-synt_N, Gln-synt_C
373 amino acids: PaperBLAST, CDD, Compare to cluster

P25462 glutamine synthetase (EC 6.3.1.2) from Zea mays
PFams: Gln-synt_N, Gln-synt_C
423 amino acids: PaperBLAST, CDD, Compare to cluster

P38562 glutamine synthetase (EC 6.3.1.2) from Zea mays
PFams: Gln-synt_N, Gln-synt_C
355 amino acids: PaperBLAST, CDD, Compare to cluster

P46410 glutamine synthetase (EC 6.3.1.2) from Sus scrofa
PFams: Gln-synt_N, Gln-synt_C
373 amino acids: PaperBLAST, CDD, Compare to cluster

Q08CT3 glutamine synthetase (EC 6.3.1.2) from Danio rerio
PFams: Gln-synt_N, Gln-synt_C
371 amino acids: PaperBLAST, CDD, Compare to cluster

Q1MXG4 glutamine synthetase (EC 6.3.1.2) from Enchytraeus japonensis
PFams: Gln-synt_N, Gln-synt_C
360 amino acids: PaperBLAST, CDD, Compare to cluster

Q3L0T9 glutamine synthetase (EC 6.3.1.2) from Cucumis melo
PFams: Gln-synt_N, Gln-synt_C
432 amino acids: PaperBLAST, CDD, Compare to cluster

Q43127 glutamine synthetase, type II (EC 6.3.1.2) from Arabidopsis thaliana
GLNA2_ARATH / Q43127 Glutamine synthetase, chloroplastic/mitochondrial; GS2; Glutamate--ammonia ligase; EC 6.3.1.2 from Arabidopsis thaliana (Mouse-ear cress)
Q43127 glutamine synthetase (EC 6.3.1.2) from Arabidopsis thaliana
PFams: Gln-synt_C
430 amino acids: PaperBLAST, CDD, Compare to cluster

Q45NB2 glutamine synthetase (EC 6.3.1.2) from Triticum aestivum
PFams: Gln-synt_N, Gln-synt_C
427 amino acids: PaperBLAST, CDD, Compare to cluster

Q45NB3 glutamine synthetase (EC 6.3.1.2) from Triticum aestivum
PFams: Gln-synt_C
427 amino acids: PaperBLAST, CDD, Compare to cluster

Q45NB4 glutamine synthetase (EC 6.3.1.2) from Triticum aestivum
PFams: Gln-synt_C
427 amino acids: PaperBLAST, CDD, Compare to cluster

Q45NB5 glutamine synthetase (EC 6.3.1.2) from Triticum aestivum
PFams: Gln-synt_N, Gln-synt_C
356 amino acids: PaperBLAST, CDD, Compare to cluster

Q45NB6 glutamine synthetase (EC 6.3.1.2) from Triticum aestivum
PFams: Gln-synt_N, Gln-synt_C
356 amino acids: PaperBLAST, CDD, Compare to cluster

Q45NB7 glutamine synthetase (EC 6.3.1.2) from Triticum aestivum
PFams: Gln-synt_N, Gln-synt_C
356 amino acids: PaperBLAST, CDD, Compare to cluster

Q4CN04 glutamine synthetase (EC 6.3.1.2) from Trypanosoma cruzi
PFams: Gln-synt_C
421 amino acids: PaperBLAST, CDD, Compare to cluster

GLN11_ARATH / Q56WN1 Glutamine synthetase cytosolic isozyme 1-1; Glutamate--ammonia ligase GLN1;1; GLN1;1; EC 6.3.1.2 from Arabidopsis thaliana (Mouse-ear cress)
Q56WN1 glutamine synthetase (EC 6.3.1.2) from Arabidopsis thaliana
PFams: Gln-synt_N, Gln-synt_C
356 amino acids: PaperBLAST, CDD, Compare to cluster

Q6RUI9 glutamine synthetase (EC 6.3.1.2) from Triticum aestivum
PFams: Gln-synt_N, Gln-synt_C
362 amino acids: PaperBLAST, CDD, Compare to cluster

Q6RUJ0 glutamine synthetase (EC 6.3.1.2) from Triticum aestivum
PFams: Gln-synt_N, Gln-synt_C
362 amino acids: PaperBLAST, CDD, Compare to cluster

Q6RUJ1 glutamine synthetase (EC 6.3.1.2) from Triticum aestivum
PFams: Gln-synt_N, Gln-synt_C
354 amino acids: PaperBLAST, CDD, Compare to cluster

Q6RUJ2 glutamine synthetase (EC 6.3.1.2) from Triticum aestivum
PFams: Gln-synt_N, Gln-synt_C
354 amino acids: PaperBLAST, CDD, Compare to cluster

Q7T2P7 glutamine synthetase (EC 6.3.1.2) from Danio rerio
PFams: Gln-synt_N, Gln-synt_C
371 amino acids: PaperBLAST, CDD, Compare to cluster

Q7ZVF2 glutamine synthetase (EC 6.3.1.2) from Danio rerio
PFams: Gln-synt_N, Gln-synt_C
372 amino acids: PaperBLAST, CDD, Compare to cluster

Q84UC1 glutamine synthetase (EC 6.3.1.2) from Medicago truncatula
PFams: Gln-synt_N, Gln-synt_C
428 amino acids: PaperBLAST, CDD, Compare to cluster

Q86EI1 glutamine synthetase (EC 6.3.1.2) from Schistosoma japonicum
PFams: Gln-synt_N, Gln-synt_C
364 amino acids: PaperBLAST, CDD, Compare to cluster

Q86ZU6 glutamine synthetase (EC 6.3.1.2) from Tuber borchii
PFams: Gln-synt_N, Gln-synt_C
358 amino acids: PaperBLAST, CDD, Compare to cluster

GLNA_CANLF / Q8HZM5 Glutamine synthetase; GS; Glutamate--ammonia ligase; Palmitoyltransferase GLUL; EC 6.3.1.2; EC 2.3.1.225 from Canis lupus familiaris (Dog) (Canis familiaris)
Q8HZM5 glutamine synthetase (EC 6.3.1.2) from Canis lupus familiaris
PFams: Gln-synt_N, Gln-synt_C
373 amino acids: PaperBLAST, CDD, Compare to cluster

GLN12_ARATH / Q8LCE1 Glutamine synthetase cytosolic isozyme 1-2; Glutamate--ammonia ligase GLN1;2; GLN1;2; EC 6.3.1.2 from Arabidopsis thaliana (Mouse-ear cress)
Q8LCE1 glutamine synthetase (EC 6.3.1.2) from Arabidopsis thaliana
PFams: Gln-synt_N, Gln-synt_C
356 amino acids: PaperBLAST, CDD, Compare to cluster

Q9AXD8 glutamine synthetase (EC 6.3.1.2) from Avicennia marina
PFams: Gln-synt_N, Gln-synt_C
356 amino acids: PaperBLAST, CDD, Compare to cluster

Q9FMD9 glutamine synthetase (EC 6.3.1.2) from Arabidopsis thaliana
GLN14_ARATH / Q9FMD9 Glutamine synthetase cytosolic isozyme 1-4; Glutamate--ammonia ligase GLN1;4; GLN1;4; EC 6.3.1.2 from Arabidopsis thaliana (Mouse-ear cress)
Q9FMD9 glutamine synthetase (EC 6.3.1.2) from Arabidopsis thaliana
PFams: Gln-synt_C
356 amino acids: PaperBLAST, CDD, Compare to cluster

GLN13_ARATH / Q9LVI8 Glutamine synthetase cytosolic isozyme 1-3; GS1; Glutamate--ammonia ligase GLN1;3; GLN1;3; EC 6.3.1.2 from Arabidopsis thaliana (Mouse-ear cress)
Q9LVI8 glutamine synthetase (EC 6.3.1.2) from Arabidopsis thaliana
PFams: Gln-synt_N, Gln-synt_C
354 amino acids: PaperBLAST, CDD, Compare to cluster

CH_122441 glutamine synthetase; EC 6.3.1.2 from Emericella nidulans
PFams: Gln-synt_N, Gln-synt_C
345 amino acids: PaperBLAST, CDD, Compare to cluster

RF|NP_593400.1 glutamate-ammonia ligase Gln1; EC 6.3.1.2 from Schizosaccharomyces pombe
PFams: Gln-synt_N, Gln-synt_C
359 amino acids: PaperBLAST, CDD, Compare to cluster

GLNA4_PHAVU / P15102 Glutamine synthetase leaf isozyme, chloroplastic; Glutamate--ammonia ligase; Isozyme delta; EC 6.3.1.2 from Phaseolus vulgaris (Kidney bean) (French bean)
PFams: Gln-synt_N, Gln-synt_C
429 amino acids: PaperBLAST, CDD, Compare to cluster

GLNA_CHICK / P16580 Glutamine synthetase; GS; Glutamate decarboxylase; Glutamate--ammonia ligase; p42; EC 6.3.1.2; EC 4.1.1.15 from Gallus gallus (Chicken)
PFams: Gln-synt_N, Gln-synt_C
373 amino acids: PaperBLAST, CDD, Compare to cluster

GLNA2_STRVR / P19432 Glutamine synthetase; GS; Glutamate--ammonia ligase; Glutamine synthetase II; GSII; EC 6.3.1.2 from Streptomyces viridochromogenes
PFams: Gln-synt_N, Gln-synt_C
343 amino acids: PaperBLAST, CDD, Compare to cluster

P32288 glutamine synthetase subunit (EC 6.3.1.2) from Saccharomyces cerevisiae (strain ATCC 204508 / S288c)
GLNA_YEAST / P32288 Glutamine synthetase; GS; Glutamate--ammonia ligase; EC 6.3.1.2 from Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast)
PFams: Gln-synt_N, Gln-synt_C
370 amino acids: PaperBLAST, CDD, Compare to cluster

GLNA_SQUAC / P41320 Glutamine synthetase, mitochondrial; Glutamate--ammonia ligase; EC 6.3.1.2 from Squalus acanthias (Spiny dogfish)
PFams: Gln-synt_N, Gln-synt_C
403 amino acids: PaperBLAST, CDD, Compare to cluster

GLNA2_RHILP / Q02154 Glutamine synthetase; GS; Glutamate--ammonia ligase; Glutamine synthetase II; GSII; EC 6.3.1.2 from Rhizobium leguminosarum bv. phaseoli
PFams: Gln-synt_N, Gln-synt_C
326 amino acids: PaperBLAST, CDD, Compare to cluster

GLN13_ORYSJ / Q4W8D0 Glutamine synthetase cytosolic isozyme 1-3; Glutamate--ammonia ligase GLN1;3; OsGLN1;3; OsGS1;3; EC 6.3.1.2 from Oryza sativa subsp. japonica (Rice)
Q4W8D0 glutamine synthetase (EC 6.3.1.2) from Oryza sativa Japonica Group
PFams: Gln-synt_N, Gln-synt_C
370 amino acids: PaperBLAST, CDD, Compare to cluster

GLN15_ARATH / Q8GXW5 Glutamine synthetase cytosolic isozyme 1-5; Glutamate--ammonia ligase GLN1;5; GLN1;5; EC 6.3.1.2 from Arabidopsis thaliana (Mouse-ear cress)
PFams: Gln-synt_C
353 amino acids: PaperBLAST, CDD, Compare to cluster

Cluster 2 432-491 amino acids (not heteromeric)

GLNA3_HALMT / I3R176 Glutamine synthetase 3; GS3; Glutamate--ammonia ligase; EC 6.3.1.2 from Haloferax mediterranei (strain ATCC 33500 / DSM 1411 / JCM 8866 / NBRC 14739 / NCIMB 2177 / R-4) (Halobacterium mediterranei)
B8ZJH0 glutamine synthetase (EC 6.3.1.2) from Haloferax mediterranei
PFams: Gln-synt_N, Gln-synt_C
456 amino acids: PaperBLAST, CDD, Compare to cluster

A9ZPH9 glutamate--methylamine ligase monomer (EC 6.3.4.12; EC 6.3.1.6) (from HMM only) from Methylovorus mays
GMAS_METMY / A9ZPH9 Glutamate--methylamine ligase; Gamma-glutamylmethylamide synthetase; GMAS; Glutamate--ethylamine ligase; N(5)-ethyl-L-glutamine synthetase; Theanine synthetase; EC 6.3.4.12; EC 6.3.1.6 from Methylovorus mays
A9ZPH9 glutamate-methylamine ligase (EC 6.3.4.12) from Methylovorus mays
PFams: Gln-synt_C
444 amino acids: PaperBLAST, CDD, Compare to cluster

C4L2T5 glutamine synthetase (EC 6.3.1.2) from Exiguobacterium sp.
PFams: Gln-synt_N, Gln-synt_C
446 amino acids: PaperBLAST, CDD, Compare to cluster

C7CGX7 glutamate-methylamine ligase (EC 6.3.4.12) (from HMM only) from Methylorubrum extorquens
PFams: Gln-synt_C
432 amino acids: PaperBLAST, CDD, Compare to cluster

F2RM17 glutamine synthetase (EC 6.3.1.2) from Haloferax mediterranei
PFams: Gln-synt_N_2, Gln-synt_C
446 amino acids: PaperBLAST, CDD, Compare to cluster

GLNA_THEKO / O08467 Glutamine synthetase; GS; Glutamate--ammonia ligase; Glutamine synthetase I alpha; GSI alpha; EC 6.3.1.2 from Thermococcus kodakarensis (strain ATCC BAA-918 / JCM 12380 / KOD1) (Pyrococcus kodakaraensis (strain KOD1))
O08467 glutamine synthetase (EC 6.3.1.2) from Pyrococcus sp.
PFams: Gln-synt_N, Gln-synt_C
443 amino acids: PaperBLAST, CDD, Compare to cluster

GLNA_ARCFU / O29313 Glutamine synthetase; GS; Glutamate--ammonia ligase; Glutamine synthetase I alpha; GSI alpha; EC 6.3.1.2 from Archaeoglobus fulgidus (strain ATCC 49558 / DSM 4304 / JCM 9628 / NBRC 100126 / VC-16)
O29313 glutamine synthetase (EC 6.3.1.2) from Archaeoglobus fulgidus
PFams: Gln-synt_N, Gln-synt_C
491 amino acids: PaperBLAST, CDD, Compare to cluster

O33342 glutamine synthetase (EC 6.3.1.2) from Mycobacterium tuberculosis
PFams: Gln-synt_C
457 amino acids: PaperBLAST, CDD, Compare to cluster

O85177 glutamine synthetase (EC 6.3.1.2) from Amycolatopsis mediterranei
PFams: Gln-synt_N, Gln-synt_C
466 amino acids: PaperBLAST, CDD, Compare to cluster

GLN1B_SALTY / P0A1P6 Glutamine synthetase; GS; Glutamate--ammonia ligase; Glutamine synthetase I beta; GSI beta; EC 6.3.1.2 from Salmonella typhimurium (strain LT2 / SGSC1412 / ATCC 700720)
P0A1P6 glutamine synthetase (EC 6.3.1.2) from Salmonella enterica subsp. enterica serovar Typhimurium
CH_024004 glutamate--ammonia ligase; EC 6.3.1.2 from Salmonella enterica subsp. enterica serovar Typhimurium
PFams: Gln-synt_N, Gln-synt_C
469 amino acids: PaperBLAST, CDD, Compare to cluster

GLN1B_MYCBO / P0A591 Glutamine synthetase; GS; Glutamate--ammonia ligase; Glutamine synthetase I beta; GSI beta; EC 6.3.1.2 from Mycobacterium bovis (strain ATCC BAA-935 / AF2122/97)
GLN1B_MYCTU / P9WN39 Glutamine synthetase; GS; Glutamate--ammonia ligase; Glutamine synthetase I beta; GSI beta; EC 6.3.1.2 from Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv)
P0A591 glutamine synthetase (EC 6.3.1.2) from Mycobacterium tuberculosis variant bovis
P9WN39 glutamine synthetase (EC 6.3.1.2) from Mycobacterium tuberculosis
PFams: Gln-synt_N, Gln-synt_C
478 amino acids: PaperBLAST, CDD, Compare to cluster

GLN1A_BACSU / P12425 Glutamine synthetase; GS; Glutamate--ammonia ligase; Glutamine synthetase I alpha; GSI alpha; EC 6.3.1.2 from Bacillus subtilis (strain 168)
P12425 glutamine synthetase (EC 6.3.1.2) from Bacillus subtilis
PFams: Gln-synt_N, Gln-synt_C
444 amino acids: PaperBLAST, CDD, Compare to cluster

GLN1B_STRCO / P15106 Glutamine synthetase; GS; Glutamate--ammonia ligase; Glutamine synthetase I beta; GSI beta; EC 6.3.1.2 from Streptomyces coelicolor (strain ATCC BAA-471 / A3(2) / M145)
P15106 glutamine synthetase (EC 6.3.1.2) from Streptomyces coelicolor
PFams: Gln-synt_N, Gln-synt_C
469 amino acids: PaperBLAST, CDD, Compare to cluster

P36205 glutamine synthetase (EC 6.3.1.2) from Thermotoga maritima
PFams: Gln-synt_N, Gln-synt_C
439 amino acids: PaperBLAST, CDD, Compare to cluster

P36687 glutamine synthetase (EC 6.3.1.2) from Pyrococcus woesei
PFams: Gln-synt_N, Gln-synt_C
439 amino acids: PaperBLAST, CDD, Compare to cluster

P64246 glutamine synthetase (EC 6.3.1.2) from Mycobacterium tuberculosis variant bovis
PFams: Gln-synt_N, Gln-synt_C
446 amino acids: PaperBLAST, CDD, Compare to cluster

Q0E5H7 glutamine synthetase (EC 6.3.1.2) from Halobacillus halophilus
PFams: Gln-synt_N, Gln-synt_C
436 amino acids: PaperBLAST, CDD, Compare to cluster

GLNA1_METMA / Q8PY99 Glutamine synthetase; GS; Glutamate--ammonia ligase; EC 6.3.1.2 from Methanosarcina mazei (strain ATCC BAA-159 / DSM 3647 / Goe1 / Go1 / JCM 11833 / OCM 88) (Methanosarcina frisia)
Q8PY99 glutamine synthetase (EC 6.3.1.2) from Methanosarcina mazei
PFams: Gln-synt_N, Gln-synt_C
447 amino acids: PaperBLAST, CDD, Compare to cluster

GLNA_SULAC / Q9HH09 Glutamine synthetase; GS; Glutamate--ammonia ligase; Glutamine synthetase I alpha; GSI alpha; EC 6.3.1.2 from Sulfolobus acidocaldarius (strain ATCC 33909 / DSM 639 / JCM 8929 / NBRC 15157 / NCIMB 11770)
Q9HH09 glutamine synthetase (EC 6.3.1.2) from Sulfolobus acidocaldarius
PFams: Gln-synt_N, Gln-synt_C
473 amino acids: PaperBLAST, CDD, Compare to cluster

Q9RHZ1 glutamine synthetase (EC 6.3.1.2) from Trichormus azollae
PFams: Gln-synt_N, Gln-synt_C
474 amino acids: PaperBLAST, CDD, Compare to cluster

P0A9C5 glutamine synthetase (EC 6.3.1.2) from Escherichia coli (strain K12)
CH_024014 glutamate--ammonia ligase; EC 6.3.1.2 from Escherichia coli K12
ECOCYC|ADENYLYL-GS glutamine synthetase from Escherichia coli K12
PFams: Gln-synt_N, Gln-synt_C
469 amino acids: PaperBLAST, CDD, Compare to cluster

GMAS_METUF / F5RH07 Glutamate--methylamine ligase; Gamma-glutamylmethylamide synthetase; GMAS; EC 6.3.4.12 (from HMM only) from Methyloversatilis universalis (strain ATCC BAA-1314 / JCM 13912 / FAM5)
PFams: Gln-synt_C
442 amino acids: PaperBLAST, CDD, Compare to cluster

GLNA3_RHIME / O87393 Glutamine synthetase; GS; Glutamate--ammonia ligase; Glutamine synthetase III; GSIII; EC 6.3.1.2 from Rhizobium meliloti (strain 1021) (Ensifer meliloti) (Sinorhizobium meliloti)
PFams: Gln-synt_C
435 amino acids: PaperBLAST, CDD, Compare to cluster

GLN1B_NOSS1 / P00964 Glutamine synthetase; GS; Glutamate--ammonia ligase; Glutamine synthetase I beta; GSI beta; EC 6.3.1.2 from Nostoc sp. (strain PCC 7120 / SAG 25.82 / UTEX 2576)
PFams: Gln-synt_N, Gln-synt_C
474 amino acids: PaperBLAST, CDD, Compare to cluster

GLN1B_SYNY3 / P77961 Glutamine synthetase; GS; Glutamate--ammonia ligase; Glutamine synthetase I beta; GSI beta; EC 6.3.1.2 from Synechocystis sp. (strain PCC 6803 / Kazusa)
P77961 glutamine synthetase (EC 6.3.1.2) from Synechocystis sp.
PFams: Gln-synt_N, Gln-synt_C
473 amino acids: PaperBLAST, CDD, Compare to cluster

GLN1B_PSETA / Q3V5W6 Glutamine synthetase; GS; Glutamate--ammonia ligase; Glutamine synthetase I beta; GSI beta; EC 6.3.1.2 from Pseudomonas taetrolens
PFams: Gln-synt_N, Gln-synt_C
468 amino acids: PaperBLAST, CDD, Compare to cluster

GLNA_THET8 / Q5SIP0 Glutamine synthetase; GS; Glutamate--ammonia ligase; EC 6.3.1.2 from Thermus thermophilus (strain ATCC 27634 / DSM 579 / HB8)
PFams: Gln-synt_N, Gln-synt_C
446 amino acids: PaperBLAST, CDD, Compare to cluster

GLNA_METJA / Q60182 Glutamine synthetase; GS; Glutamate--ammonia ligase; Glutamine synthetase I alpha; GSI alpha; EC 6.3.1.2 from Methanocaldococcus jannaschii (strain ATCC 43067 / DSM 2661 / JAL-1 / JCM 10045 / NBRC 100440) (Methanococcus jannaschii)
Q60182 glutamine synthetase (EC 6.3.1.2) from Methanocaldococcus jannaschii
PFams: Gln-synt_N, Gln-synt_C
454 amino acids: PaperBLAST, CDD, Compare to cluster

GLNA2_STRCO / Q9RDS6 Gamma-glutamylpolyamine synthetase GlnA2; EC 6.3.1.- (from HMM only) from Streptomyces coelicolor (strain ATCC BAA-471 / A3(2) / M145)
PFams: Gln-synt_N, Gln-synt_C
453 amino acids: PaperBLAST, CDD, Compare to cluster

B8EQ68 glutamate--methylamine ligase (EC 6.3.4.12) (from HMM only) from Methylocella silvestris (strain DSM 15510 / CIP 108128 / LMG 27833 / NCIMB 13906 / BL2)
PFams: Gln-synt_C
435 amino acids: PaperBLAST, CDD, Compare to cluster

Q31L83 glutamine synthetase, type I from Synechococcus elongatus (strain ATCC 33912 / PCC 7942 / FACHB-805)
PFams: Gln-synt_N, Gln-synt_C
473 amino acids: PaperBLAST, CDD, Compare to cluster

Cluster 3 693-729 amino acids (not heteromeric)

Q5LGP1 glutamine synthetase (EC 6.3.1.2) from Bacteroides fragilis
PFams: GSIII_N, Gln-synt_C, Gln-synt_C-ter
729 amino acids: PaperBLAST, CDD, Compare to cluster

GLNA3_BACFR / P15623 Glutamine synthetase; GS; Glutamate--ammonia ligase; Glutamine synthetase III; GSIII; EC 6.3.1.2 from Bacteroides fragilis (strain YCH46)
PFams: GSIII_N, Gln-synt_C, Gln-synt_C-ter
729 amino acids: PaperBLAST, CDD, Compare to cluster

Q4ZH57 glutamine synthetase subunit (EC 6.3.1.2) from Ruminococcus albus 8
PFams: GSIII_N, Gln-synt_C, Gln-synt_C-ter
693 amino acids: PaperBLAST, CDD, Compare to cluster

Q31RW8 glutamine synthetase type III subunit (EC 6.3.1.2) from Synechococcus elongatus (strain ATCC 33912 / PCC 7942 / FACHB-805)
PFams: GSIII_N, Gln-synt_C, Gln-synt_C-ter
723 amino acids: PaperBLAST, CDD, Compare to cluster

Singletons (0/2 heteromeric)

O07752 glutamine synthetase (EC 6.3.1.2) from Mycobacterium tuberculosis
PFams: Gln-synt_C
450 amino acids: PaperBLAST, CDD

A5N4G9 GlnA; EC=6.3.1.2
632 amino acids: PaperBLAST, CDD